Anhydrous semi-solid antiperspirant suspension

Abstract

A substantially anhydrous semi-solid antiperspirant composition comprising (1) antiperspirant powder (2) thickening/suspending agent containing fumed silica (3) thickening/solid emollient (4) nonvolatile liquid emollient/plasticizer and (5) volatile emollient.

What is claimed is: 
     
       1. A substantially anhydrous semisolid antiperspirant composition consisting essentially of, based on the total weight of the composition: (1) from about 10% to about 50% of active antiperspirant powder;   (2) from about 2% to about 6% of thickening/suspending agent containing fumed silica in an amount to constitute a minimum of about 2% by weight of the total composition;   (3) from about 2% to about 6% of thickening/solid emollient;   (4) from about 2% to about 15% of nonvolatile liquid emollient/plasticizer, and   (5) from about 30% to about 70% of volatile emollient, said composition, which is in the form of a cream and has a viscosity of from about 100,000 cps to about 8,800,000 cps, exhibiting minimal syneresis, the composition when applied to skin leaving a creamy residue and exhibiting not more than slight-to-moderate staining of fabric.     
     
     
       2. A composition according to claim 1 wherein said volatile emollient is a volatile cyclomethicone. 
     
     
       3. A composition according to claim 3 wherein said thickening/solid emollient is an organic wax having a melting point greater than about 20° C. 
     
     
       4. A composition according to claim 2 wherein said thickening/solid emollient is an organic wax having a melting point less than about 120° C. 
     
     
       5. A composition according to claim 2 wherein said nonvolatile liquid emollient is selected from the group consisting of straight chain fatty acid esters, branched chain fatty acid esters, polyoxyalkylene glycol ethers, propylene glycol diesters of short chain fatty acids, polyoxyethylene fatty acids, polyoxypropylene fatty ethers, propoxylated lower alcohol ethers, higher fatty alcohols, nonvolatile silicone oils, lower hydrocarbon fractions. 
     
     
       6. A composition according to claim 2 wherein said antiperspirant material is Aluminum Zirconium Polychlorohydrex-Gly. 
     
     
       7. A composition according to claim 2 wherein said thickening/suspending agent also contains a material selected from the group consisting of precipitated silicas, hydrophobic silicas, hydrophobic bentonites, hydrophobic hectorites and mixtures thereof. 
     
     
       8. A composition according to claim 2 having a viscosity in the range of from about 300,000 cps. to about 4,400,000 cps.